Propelling mechanism for dredges, &amp;c.



L. E. GBSELL.

PROPELLING MECHANISM FOR DREDGES, 6w.

APPLICATION FILED MAY 24, 1913 Patented Jan. 19, 1915,

6 SHEETS-SHEET l.

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THE NORRIS PETERS CC).v PHOTO-LITHQ. WASHINGTON. D. C.

L. E. GESELL.

PROPELLING MECHANISM FOR DREDGES, (Kw.

APPLICATION FILED MA'Y 24,1913.

Patented Jan.'19, 1915.

6 SHEETSSHEBT 2. I

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0 O O 0 Q aww/wto'a THE NORRIS PETERS 66., PHOH'Z LATHO WASHINGTON By C.

.L. E. GESELL.

PROPBLLING MECHANISM FOR DREDGES, 6w. APPLICATION rum) MAY 24. 1913;

1, 1 ,088, v Patented: Jan. 19,1915

6 SHEETSSHEET 3.

THE NORR'IS PETERS 60., PHOTu-LIrI- IO.. WASHINQIC L. E. GESELL.

PROPELLING MECHANISM FOR DREDGBS, &c. APPLICATION IILED MAY 24, 1913.

1,1'25',O88, Patented Jan. 19, 1915.

6 SHBETS-SHEET 4.

v wwm w I v I Tu:- M/VUDLQ PETERS C04. PHOTOJIJTHQ. WASHINGTON. D C.

L. E. GESBLL. PROPELLING MECHANISM FOR DRBDGES, 6w AITLIOATIONPIL'ED"MAY24,11913.

/ 125 08 Patented Jan. 19, 1 915.

6 SHEETE-SHEBTS.

THENORRIS'PETERS C0,. PHOTO LITHO., wAsm/q'aro'm n. c.

L. E. GESELL. PBOPELLING'MBGHANISM FOR DREDGES, 6w. APPLICATION FILEDMAY 24, 1913.

1 1 25,088, Patented Jan. 19,1915.

6 SHEETS-SHEET 6.

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.onrrun sreTE- PATENT- OFFICE.

LESTER 13. GESELL,- OF THIEF RIVER FALLS, MINNESOTA.

PRIEEIJLING MECHANISM FOR DREDGES, 8w.

- Application filed May 24,

To all whom it may concern 336 117kIlOWILthZlt I LESTER E. GEsELL, a

citizen of the UniterhStates,residing at Thief: River Falls,inthe-county of Red Lake, and State of Minnesota, have in-.ventedcertain new and useful Improvemerits in Propelling Mechanism forDredges,

-&c.,' of-which the following is aspecification.

This invention 'relates to improved propelliug mechanism for dredges,excavating machines, and various other machines of like character, andthe primary ob ect there- I of ris to provide novel and peculiar meanswhereby the entire frame or dredge support may be propelled-forward bythe operation of suitable mechanism carried thereby,

the frame'being supported through the medium of a plurality of runnersor shoes arranged to straddle an excavation, and by means of-whichmotion is imparted to the dredge, the runners being advanced accordingtothe operation of any suitable power source carried upon the frame.

A further object of the invention contemplates -the provision of aspecially constructeddredge frame or support wherem 41162111318 providedfor operat1ngspec1ally arranged chains and'pulleys to actuate therunners upon which the frame is supported, 1

certain of the runners acting as supports for-the entire frame while theframe itself moves forwardly thereupon unt1l certain of the-otherrunners engage the ground and support the frame while the-firsti menittioned runners are again positionedto allow the frame to again advanceor move for vardly thereupon.

Astill' further obj ectofthe invention resides in the provision ofanupright supporting frame upon which the main frame of the dredgeormachine is at times supported, thesaid main frame being adjustedvertically upon the upright; frame to permit the runnerscarried by thesaid-main frame to be drawn or lifted out of engagement with the groundfor forwarding the dredge until the runners of the upright frame engagethe forward runners of the main frame, this operation being repeated toforward the entirernachine as occasion demands.

The-inventionstill further resides in the provisioni of means includingspecially 'dewti'sedn clutch.meehanism dsposedaipon;.-the

Specification of Letters'latent.

Patented Jan. 19, 1915.

1913. Serial- No. 769,744.

=Theabove and additional objects are ac-' complished by such. means asare illustrated intheir-preferred embodiment in the accompanyingdrawings, described inthe following specification and then moreparticularly-pointed out in the claims which are appended hereto and"form apart of this application.

in describing myinvention in detail reference-will be had to theaccompanying f drawings wherein like characters denote like."

o mcorresponding parts throughout the several views, and in which Figurel-is a side elevation of a-dre dge frame or supportc'onstructed inaccordance with my inventionfi Fig. 2' is an enlarged plan view--of thebed of the main frame, the verticallyextending beams ofthe uprightsupporting frame being shown in section; Figk 3 is a section on line 33of Fig; 2; Fig. 4cis an=enlarged detail vertical sectional View 'of theupright supporting frame; Fig. 5 is a section on line- 55 of Fig. 4;Fig. 6 is an elevation of a modification; Fig. 7 is a vertical sectionalview of -fication; and'Fig. 8- is an end view of the said upright frame.

Before proceeding with the description of the drawings I desire to callparticular at- 'tention .to the fact'that while the invention will behereinafter described as being apwplicable to 'dredges only, the samemay be readily utilized or employed in connection 1 with excavatingmachines; ditching machines -or other machines of a like character.

Referring "now to the drawings, the numeral l'designates the main framein its entirety, the said frame supporting the dredge and comprisingapair 'of longitundinally extending'spacedvapart beams 2, and

-tran's'versebeams 3 which form the framefw-ork of the main framebedillustrated in Fig;2. I

=. A== plurality of vertically: extending: beams theupright supportingframe of the modithe said beams 4 being braced through the medium ofsuitable brace beams 5 secured thereto, the beams 4 and 5 being securedat their upper extremity to longitudinally extending truss-beams 6, allof which form the main frame 1 of the dredge. The frame bed comprises,in. addition to the beams 2 and 3 above mentioned a plurality oflongitudinally extending beams 7 and a plurality of transverse beams 8,the said beams being arranged in spaced relation to form supports for anumber of bearings for the operating mechanism to be hereinafter fullydescribed.

Runners 9 and 10 are secured to the main frame 1, respectively, at theforward and rear end thereof, the forward runner 9 being disposeddirectly beneath the mast 11 of the dredge and directly beneath thepoint where the booms 12 of the dredging apparatus are secured to theframe, while the rear runners 10 are disposed directly beneath theengine 13 carried by the frame and employed for the purpose of operatingthe dredge and actuating the runners to subsequently appear.

An upright supporting frame, designated in its entirety by the numeral14 is positioned centrally of the main frame, the spaced apartvertically extending beams 15 of which are inclosed within or betweenthe longitudinal beams 2 of the main frame. Runners 16 are pivotallyconnected at the lower ends of the vertical beam 15 as at 17. Cross orlongitudinally extending beams 18 connect the vertical beams 15 of theupright frame, the lower of the said beams 18 extending forwardly of theframe 14 and having connected at the forward end of the said extendedportion a hanger 19 which is adapted to carry a pulley 20 over which oneof the operating chains to be hereinafter fully described is arranged.

Having described briefly the construction of the two frames 1 and 14,the manner in which the main frame is adjusted vertically upon the saidupright supporting frame will now be described. A shaft 21 is journaledwithin suitable brackets 22 carried by the longitudinally extendingbeams 7 of the main frame bed, the said shaft having a pulley 23 looselymounted upon one end thereof, the faces of the pulley having recesses 24formed therein one of the said recesses adapted to receive a frictionwheel 25 keyed or otherwise secured to the shaft 21 and the other recessadapted to receive a similar wheel 26 carried by a stub shaft 27extending in axial alinement with the shaft 21 and journaled Within abracket 28 secured to one of the said beams 7 Operating levers 29 arearranged, one to engage the friction wheel 25 and the otherto engage thewheel 26 for sliding the said wheels, one at a time into frictionalengagement with either of the recesses of the pill ley 23. Any suitablemeans such as a belt 29 may be arranged over the pulley 23 and a similarpulley 30 driven by the engine 13 for imparting motion to either of thesaid shafts 21 or 27 as occasion demands.

A pinion 31 is mounted upon the stub shaft 27, the said pinion meshinginto a gear wheel 32 mounted upon a shaft 33 extending parallel with theshaft 21 in spaced relation thereto, the shaft 33 being journaled withinsuitable bearings 34 secured to certain of the longitudinal beams 7. Asecond pinion 34 is mounted upon the shaft 33 at the opposite endthereof from that of the gear wheel 32, the pinion 34 meshing into agear wheel 35 mounted upon a drum shaft 36 journaled within bearings 37carried by the said beam 7. A drum 38 is rotatably mounted upon theshaft 36, the said drum having a chain 39 secured thereto, the chain 39extending forwardly therefrom to a. pulley 40 carried by a cross beam 41of the frame bed. The chain 39 extends over the pulley 40 and rearwardlyto a second pulley 42 carried by a movable pulley block From the pulley42 the chain continues again forwardly to a point 44 near the forwardend of the frame where it is securely fastened as illustrated in Fig. 2of the drawings. This arrangement of the chain 39 imparts movement tothe pulley block 43 according to the rotation of the drum 38 and as thesaid pulley block 43 carries another pulley 45 over which the chain 46is arranged, the latter being arranged over pulleys carried by theupright frame it will be seen that the main frame is raised and loweredvertically upon the said upright frame by the movement of the pulleyblock 43 controlled by the rotation of the drum 38. Each end of thechain 46 is secured ad jacent a pulley 47 mounted upon a carrier 48movable longitudinally upon a track way 49 formed upon the under face ofthe lon gitudinal beams 2 of the main frame. From the point 50 where thechain 46 is secured adjacent the pulley 47 the said chain ex tendsupwardly and over the pulley 20 carried by the hanger 19 of the uprightframe, the chain extending over the said pulley 20 and downwardly to apulley 47 over which it passes so as to extend upwardly and over apulley 52 carried by one of the vertical beams 15 of the upright frame,the said pulley 52 being positioned near the upper end of the beam 15 ordirectly beneath the lower cross arm 18. The chain continues from thepulley 52 to a second pulley 53 mounted upon the carrier 48 and extendsrearwardly therefrom to a pulley 54 mounted upon a second carrier 55secured to the other vertical beam 15 of the upright frame. lhe chainfrom the pulley 54 extends upwardly and over a pulley 56 mounted uponthe said eam 15 opposite the pulley 52 above mentioned and dependsdownwardly therefrom and over a second pulley 57 of the carrier Fromthis pulley 55 the chain extends rearwardly to a pulley 58 carried byone of the transverse beams 8 of the frame bed and thence toward thecenter of the frame to a pulley 59 carried by the same beam as thepulley 58. From the pulley 59. the chain extends forwardly and over thepulley 15 of the block from which point it extends over pulleys arrangedin duplicate upon the opposite side of the machine Where it is securedagain as at 50 adjacent the pulley 47 of the carriage 48, the referencenumerals for the various pulleys and carriages being the same-upon bothsides of the two frames as the construction and arrangement of thepulleys is identical.

The arrangement of the chain 16 over the pulleys 52 and 56 of theupright frame will cause the main frame to be raised or lowered withrespect to the upright frame according to the rotation of the drum 88controlled by the frictional engagement between the friction wheel 26and the pulley 28. Rollers 60 are mounted upon each carrlage 48 and 55,the rollers engaging the track way 49 formed upon the beam 2 and as thesaid carriages, and the said upright frame are stationary it will beseen that the entire main frame is free to move forwardly upon therollers 60 throughout the length of the track way 49 when the runners 9and 10 of the main frame are withdrawn from engagement with the ground.As the main frame is lifted or raised upon the supporting frame 1 1 thesaid runners 9 and 10 are likewise lifted whereupon the entire dredge issupported by the runners 16 of the supporting frame. The weight of thebooms and the shovel or shovels carried thereby (not shown) will causethe main frame to tilt forwardly, this tilting movement allowing thesaid frame to move forwardly over the rollers 60 until the rear runner10 of the main frame comes into engagement with the rear end of therunners 16, or until the forward runner 9 again engages the ground orsurface upon which the dredge is supported.

The means employed for forwarding the upright frame independent of themain frame is controlled by the shaft 21 in the following manner: Thefriction wheel 25 is thrown into engagement with the pulley 23 by theoperation of the hand lever 29 thus imparting motion to the said shaft21 according to the rotation of the driven pulley 80 of the engine. Agear or friction wheel 61 is mounted upon the opposite end of the shaft21 from that of the friction wheel 25, the said wheel 61 meshing into orfriction,-

ally engaging a like wheel 62 mounted upon a :shaftz63 journaled-within."brackets 647- carthe chain extending forwardlythereupon and over a pulley 71 arranged within amovable pulley block 72,from which point it extends rearwardly to a point 73 where it is securedto the frame. Another chain 74:,

v the movement of which is controlled by the,

operation of the drum 69, is arranged over a pulley 75, carried by themovable block 72, the chain extending forwardly from the pulley 75 to apulley 76 and thence to a pulley 77 from which point it extends rear-H.

wardly and over a roller 78 and is secured as at 79 to the runner 16 ofthe upright frame. This arrangement of the chain 74 is duplicated foreach runner 16 thus causing the two runners to move in unison cording tothe rotation of the shaft 21.

After the rear runner 10 of the main frame is moved forwardly until itsforward end engages the rear end of the runners 16, the friction wheel25 of the shaft 21 is, .thrown in engagement with the power pulley 23,this engagement actuating the drum 69 and causing the chain 74- to pullthe runners 16 forwardly until their forwardends engage the rear ends ofthe forward runners,-

9 of the main frame. This operation is re peated to forward or propelthe dredging machine when desired, the forwarding of the machine beingentirely controlled by the engine 13 mounted upon the frame bed of themain frame 1.

In reducing my invention to practice, the operation is as follows: Whenit is desired that the dredging machine be propelled forwardly, the mainframe is first raised VGItlr.

cally upon the upright supporting frame 1& by throwing the frictionwheel 26 into frictional engagement with the pulley 23, this engagementimparting motion to the stub shaft 27 which in turnimparts motion to thedrum 38 through the medium of the several gears and shafts providedtherefor. The rotation of the drum 38, by reason of the chain 39actuates the pulley block43, the

forward movement of which actuates the.

chain 46 and elevates or raises the main frame upon the said supportingframe as the chain 46 is arranged over pulleys 52 and 56 as well as thepulleys of the carriages 48 and 55 carried by'the said supporting frame.After elevating the mean frame until the runners 9 and 10 are withdrawnfrom engagement with the ground, the weight carried at the forward endof the h ne wflLJcanse the sai -m i i iiameir ua slide or move forwardlyupon the rollers 60 of the said carriages until the rear runner 10engages the stationary runner 16 of the supporting frame. When the mainframe has thus been moved forwardly upon the supporting frame thefriction wheel 26 is thrown out of engagement with the pulley wheel 23and the other friction wheel 25 thrown in by the operation of one of theoperating levers 29. This engagement be tween the friction wheel 25 andthe pulley 23 will transmit motion to the drum 69 by means of theseveral shafts and pulleys arranged therebetween, and as the said drum69 has a chain 70 secured thereto motion is imparted to the pulley block72 over which the said chain 70 is arranged. As the pulley block 72 ismoved by the rotation of the drum the chain 741 is actuated, suchmovement of the chain 7 1% dragging the runners 16 and the supportingframe carried thereby until the forward end of the said runners is againpositioned directly behind the forward runners 9 of the main frame.

Referring now to the modification shown in Figs. 6 to 8 inclusive, thetwo carriages -l8 and 55 have been dispensed with and one carriage isprovided. A chain 81 corresponding to the chain 46 of the preferred formis arranged over a pulley 82 carried by the carriage 80 from which pointit extends upwardly and over a large pulley 83 mounted upon one of thevertical beams 81- of the upright frame, the said beam being supportedby a runner 85 corresponding to the runner 16 of the preferred form.From the pulley 83 the chain depends to a pulley 86 mounted upon thecarriage 80 and thence upwardly to a pulley 87 pivotally connected as at89 between curved metallic plates 90 employed for the purpose ofconnecting the other vertically extending beam 91 of the upright frameto the first mentioned beam 84 thereof, the said beam 91 terminatingbefore it reaches the hanger 88 so as to space the said plates 90sufiiciently apart to allow the hanger 88 to depend therebet-ween. Fromthe pulley 87 the chain 81 continues downwardly and is secured at anyconvenient point adjacent the pulley 86, this arrangement of the chainover the modified form of upright frame allowing the main frame to risevertically with respect thereto according to the rotation of the drumprovided therefor.

The means employed for dragging or forwarding the said supporting frameof the modification being substantially the same as that of thepreferred form a detail description thereof will not be given.

It will be seen from the above, taken in connection with theaccompanying drawings that the entire main frame is moved forwardlyindependent of the supporting frame 14:; that the vertical movement ofthe main frame and the forward movement of the supporting frame iscontrolled by the driven pulley 23 into which the friction wheels 25 and26 are adapted to be moved for frictional engagement; and that theweight carried by the forward end-of the main frame is sufficient totilt the entire frame and cause the same to move forwardly upon therollers 60 mounted upon the carriages 48 and 55 which are stationarywith the supporting frame 14L In reduction to practice, I have foundthat the form of my invention, illustrated in the drawings and referredto in the above description, as the preferred embodiment is the mostefficient and practical; yet realizing that the conditions concurrentwith the adoption of my device will necessarily vary, I desire toemphasize the fact that various minor changes in details ofconstruction, proportion and arrangement of parts may be resorted to,when required, without sacrificing any of the advantages of myinvention, as defined in the appended claims.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent, is

1. In propelling mechanism for dredges, the combination of a main framecomprising a plurality of longitudinal brace beams, transverse beamsarranged, one adjacent each end of said frame, a pair of drums mountedfor rotation between certain of said longitudinal beams, means upon saidframe for alternately rotating said drums, an upright frame extendingthrough said main. frame, a plurality of pulleys mounted upon each ofsaid transverse beams, means connecting one of said drums and saidupright frame, said means being arranged over certain of said pulleysfor raising and lowering said main frame relative to said upright frame,and means connected to the other of said drums and arranged over thepulleys upon the other of the said transverse means to advance saidupright frame relative to said main frame, as and for the purpose setforth.

2. ln propelling mechanism for dredges, the combination with a mainframe, a pair of drums mounted for rotation upon said frame, a firstshaft,a second shaft,means driving said second shaft, means upon saidsecond shaft movable into and out of engagement with means upon saidfirst shaft for controlling rotation thereof, a third shaft, meansconnecting said second shaft with said third shaft, means connectingsaid third shaft with one of said drums for iniparting motion thereto, afourth shaft, means connecting said first shaft with said fourth shaftfor imparting motion thereto, means connecting said fourth shaft withthe other of the said drums for imparting motion thereto, an uprightframe extending through said main frame, means connecting In testimonywhereof I aflix' my signature one of said drums to said upright framefor in presence of two Witnesses.

raising and lowering said main frame rela- LESTER E GESELL tive thereto,and means connecting the other of the said drums to the said uprightframe Witnesses:

for advancing the latter relative to said OLIVER RIsAW,

main frame, as and for the purpose set forth. KATHARINE GESEL Copies ofthis patent may be obtained for five cents eachflny addressing theCommissioner of Iatents,

Washington, D. G.

